Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

How poor selection of food causing the underweight, How Poor Selection of F...

How Poor Selection of Food causing the Underweight? Poor Selection of Food: Poor selection of food along with irregular eating habits may be responsible for insufficient food

Partial pericardiectomy-pericardial effusion, Partial Pericardiectomy :  ...

Partial Pericardiectomy :  The approach can be either by a left anterolateral thoracotomy or median sternotomy. For pyogenic pericarditis with adhesions and loculations a par

Explain about gelation, Gelation Agar gels can be formed in very dilute...

Gelation Agar gels can be formed in very dilute solutions containing a fraction of 1% agar. In fact gelation is perceptible at concentrations as low as 0.04%. These gels are ri

Are birds rare in polar regions, How different are reptiles and birds conce...

How different are reptiles and birds concerning the maintenance of body temperature? Are birds rare in polar regions? Reptiles are heterothermic, i.e., they do not control thei

Define the management of epileptic patients, Define the Management of Epile...

Define the Management of Epileptic Patients? The primary treatment of epilepsy is anticonvulsant drugs. The focus of nutritional management is a diet, which is appropriate for

Antibodies, Antibodies Antibodies are important.tools for detecting and...

Antibodies Antibodies are important.tools for detecting and localising specific molecules in the cells due to their high specificity. The first requirement for this is to produ

Explain functional property of emulsification, Explain Functional property ...

Explain Functional property of Emulsification Mode of action  Proteins stabilize fat emulsions Food system Sausages, soups, cakes, salad dressings, infant foods

Explain the protein efficiency ratio (per), Explain the Protein Efficiency ...

Explain the Protein Efficiency Ratio (PER)? PER method was developed by Osborne, Mendel and Ferry in 1919 and is based on the growth of young rats. The diets usually contain 10

Define sample titration for saponification number of fats, Define Sample Ti...

Define Sample Titration for Saponification Number of Fats? Measure 2 ml of oil with the help of a pipette and transfer this oil to a 250 ml conical flask. Add 40 ml of alcoholi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd